package com.itheima.reggie.config;

import com.itheima.reggie.common.JacksonObjectMapper;
import com.itheima.reggie.interceptor.LoginInterceptor;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.converter.HttpMessageConverter;
import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter;
import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurationSupport;

import java.util.List;

@Slf4j
@Configuration
public class WebMvcConfig extends WebMvcConfigurationSupport {
    @Autowired
    private LoginInterceptor loginInterceptor;
    @Override
    //设置静态资源拦截器
    protected void addResourceHandlers(ResourceHandlerRegistry registry) {
        log.info("设置静态资源放行");
        //设置静态资源放行
        registry.addResourceHandler("/backend/**")
                .addResourceLocations("classpath:/backend/");

        registry.addResourceHandler("/front/**")
                .addResourceLocations("classpath:/front/");
    }
    //设置登录校验拦截器
    @Override
    protected void addInterceptors(InterceptorRegistry registry) {
        registry
                .addInterceptor(loginInterceptor)
                .addPathPatterns("/**")//拦截资源
                //放行资源
                .excludePathPatterns("/employee/login")
                .excludePathPatterns("/employee/logout")
                .excludePathPatterns("/backend/**")
                .excludePathPatterns("/front/**")
                .excludePathPatterns("/common/**")
                .excludePathPatterns("/user/login")
                .excludePathPatterns("/user/sendMsg");

    }

    /**
     * 扩展mvc框架的消息转换器
     * @param converters
     */
    @Override
    protected void extendMessageConverters(List<HttpMessageConverter<?>> converters) {
        //创建消息转换器对象
        MappingJackson2HttpMessageConverter messageConverter
                = new MappingJackson2HttpMessageConverter();
        //设置对象转换器，底层使用Jackson将Java对象转为json
        messageConverter.setObjectMapper(new JacksonObjectMapper());
        //将上面的消息转换器对象追加到mvc框架的转换器集合中
        converters.add(0,messageConverter);
    }
}